Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 1 4 8 2 1 4 8 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Equalizer rings are used in which of the followings? both 1 and 2 None of these lap winding wave winding both 1 and 2 None of these lap winding wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to reduce the harmonics. improve the power factor. improve the starting torque. start the motor. reduce the harmonics. improve the power factor. improve the starting torque. start the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When applied rated voltage per phase is reduce to one half, the starting torque of three phase squirrel cage induction motor becomes twice the initial value 4 time the initial value 1/4 of the intial value 1/2 of the initial value twice the initial value 4 time the initial value 1/4 of the intial value 1/2 of the initial value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited DC generator, running at rated speed, has 6 volts across its armature terminals with no field current. When field winding is excited with one ampere, the voltage builds up to 250 V at no load. In case field current is reduced to zero, with the speed remaining unaltered, the armature terminal voltage would be zero more than 6 V 6 V less than 6 V zero more than 6 V 6 V less than 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The teeth in the armature of a DC machines are sometimes skewed. This is done to reduce copper loss. hysteresis loss. vibrations. eddy electric current loss. copper loss. hysteresis loss. vibrations. eddy electric current loss. ANSWER DOWNLOAD EXAMIANS APP
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